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Ionization in vacuum ultraviolet F2 laser ablated polymer plumes

Dyer, P. E.; Pervolaraki, M.; Walton, C. D.; Lippert, T.; Kuhnke, M.; Wokaun, A.

Authors

P. E. Dyer P.E.Dyer@hull.ac.uk

M. Pervolaraki

C. D. Walton C.D.Walton@hull.ac.uk

T. Lippert

M. Kuhnke

A. Wokaun



Abstract

An experimental investigation of ion generation in the 157-nm vacuum ultraviolet (VUV) F-2 laser ablation of three selected polymers - glycidyl azide polymer (GAP), a triazene polymer (TP6) and polyimide - is described. An ion collector probe is used to determine the relative ion yield and white-light interferometry of ablated surfaces to ascertain mass-removal levels. The findings indicate that ions are generated under the action of the VUV laser pulse at fluences down to at least as low as the threshold for material removal. A two-photon photoionization model is proposed that provides a good description of the results.

Journal Article Type Article
Publication Date 2008-03
Journal APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Print ISSN 0947-8396
Electronic ISSN 1432-0630
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 90
Issue 3
Pages 403-409
APA6 Citation Dyer, P. E., Pervolaraki, M., Walton, C. D., Lippert, T., Kuhnke, M., & Wokaun, A. (2008). Ionization in vacuum ultraviolet F2 laser ablated polymer plumes. Applied physics. A, Materials science & processing, 90(3), 403-409. doi:10.1007/s00339-007-4341-x
DOI https://doi.org/10.1007/s00339-007-4341-x
Keywords Polyimide; Material removal; Vacuum ultraviolet; Glycidyl azide polymer; White light interferometer
Publisher URL https://link.springer.com/article/10.1007%2Fs00339-007-4341-x


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